Fiber optic hydrophone having rigid mandrel
US5625724A · kind A · utility
21Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1996 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Mar 6, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4457
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber optic interferometric sensor for use in a hydrophone system at high pressures includes a reference fiber wrapped around a rigid inner cylinder. A solid layer of compliant material is applied over the reference fiber. The sensing arm of the interferometer is wound over the layer of material applied over the reference fiber. The outer material is sufficiently compliant to provide acoustic sensitivity comparable to that of air-backed hydrophones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.